Communication tool to illustrate basin functions and management option impacts on them

The modelling process consists of five steps. Initially, a baseline model is being build. The baseline model documents the current hydrological status in the basin of interest. Scenario analysis is a cyclic process.

A baseline model is build as the initial step in a modelling project. The outcome of this task is a calibrated base model ready for scenario analysis. The base model consist of basic spatial and temporal data and model controls representing the hydrological system of the basin of interest.

Setup scenarios

Scenario analysis is the core process in an IWRM modelling project. Once the management options have been identified, the model is used to gain an understanding of the hydrological processes in the basin, and determine how the proposed management action will affect these processes.

The management option scenarios are built by altering the base line model and/or modelled scenarios. For this there’s a multitude of options.

Simulate scenarios

The EIA IWRM Modelling Tool consists of the distributed hydrological base model and several coupled components. Each component is flexible so that management alternatives can be incorporated into the model and assessed.

Hydrology which enables analysis of the impact of land use changes, water conservation measures and climate change;

River flow which enables analysis of water availability, hydropower operations, flooding and flood management;